<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
   <div>
        <a href="/success">主页</a>
        <a href="/class">班级</a>
        <a href="/student">学生</a>
   </div>
   <a href="">{{ user.username }}</a>
   <a href="/loginOut">退出登录</a>
</body>
</html>